不动管柱液控循环换层开关的研制  

Development of a hydraulic cyclic layer-shifting switch.

作　　者：赵增顺[1] 谷开昭[2] 古光明[2] 柴国兴[2] 

机构地区：[1]中国科学院自动化研究所 [2]胜利油田有限公司采油工艺研究院

出　　处：《石油机械》2005年第3期31-33,4-5,共3页China Petroleum Machinery

基　　金：中石化集团公司重点科研项目的部分研究内容。课题编号: KZD21999008

摘　　要：针对胜利油田中后期开发中油层含水大幅上升、层间矛盾加剧和作业成本居高不下等问题, 开发了不动管柱换层开采工艺, 不动管柱液控循环换层开关是该技术的关键所在。介绍了该井下开关的结构原理、技术特点及现场应用情况。该工具与封隔器等工具组合, 可任意控制各油层的生产或关闭。不动管柱液控循环换层开关的应用提高了换层采油效率, 简化了分层找水和采油措施。改进后的换层开关在现场共施工 21井次, 只有 1井次因砂埋管柱使换层作业失败, 施工成功率 95 3%, 比改进前提高 15 3%。The selective zonal withdrawal technology is used in Shengli Oilfield since the water cut of the oilfield is becoming higher and higher. The hydraulic cyclic layer-shifting switch is the key technique of this production technology. The design feature, technical characteristics and field application of this new down hole switch are introduced. Used with packers, the switch can control the opening and closing of every production zone conveniently. Therefore the utilization of the switch improves the efficiency of zonal production, and simplifies the zonal water detection and oil production procedures. Field use shows this down hole switch has reliable performance.

关 键 词：管柱 油层 采油效率 层间矛盾 封隔器 现场应用 含水 作业成本 关闭 技术 

分 类 号：TE357[石油与天然气工程—油气田开发工程] TE355